7550 Control Panel (Legacy)

Patrick demonstrates how to auto tune a 7550 series control panel with a Heat Torch 200 inline air heater installed.

Transcript:

Today we're going to discuss the autotuning feature of the 7550 Series Temperature Process Controller. We have a Heat Torch 200 heater installed right here with a process and high limit thermocouple going into the 7550 Series Thermal Process Controller. We already have airflow established through the heater above the minimum requirements. The first thing we're going to do is turn on the 7550 series controller. Upon turning it on it will instantly go into a hold mode for safety. We're going to start by going into the setup menu. We're going to set our process temperature for 200 degrees Fahrenheit. To initiate the autotune cycle we need to cycle through the menu until we get to the autotuning setting. The autotune is currently off. We are going to turn it on. We are going to exit out of the menu. Upon turning the heat on the autotune cycle will start. The controller is now autotuning. This can take up to 90 minutes. As you can see the autotune cycle has completed and the temperature is now holding at the process set value. Thank you for watching.

• Control Panels and Temperature Controllers
• 7550 Control Panel (Legacy)

Patrick Laws demonstrates the proper wiring of a 7550 Series Temperature Control Panel.

Transcript:

This is a brief overview of the installation and wiring of the 7550 Series Temperature Control Panel. When you unpack your control panel the very first thing that you should come across is the installation and control manual. This should contain all of the information that you need to install, wire and operate the unit. We will go over most that right now. For this demonstration we've already mounted the unit and I've already have power wires and heater supply wires plumbed into the unit. We added holes into the unit as well as strain reliefs to those holes to hold the wires in place. Here we have the heater wiring. This will come from the control panel to the heater. This is the supply wiring. This will come to the control panel from our disconnect panel. These are the wirings for the process and high limit thermal couples. We're going to begin by wiring in the supply power, ground wire along with the ground wire that what we go into the heater. This will ensure the heater is always properly grounded to an earth ground. Now we will continue to wire the additional legs of our three phase circuit. Now our supply wiring has been installed in the ground L1, L2 and L3 locations. We will now wire the heater in H1 H2 and H3. We have the supply wiring as well as the wiring coming from the control panel to the heater wired. Now we're going to install our interlocked jumpers. Since our install will not include a snap switch or a flow sensor we will place jumpers in these to prevent the controller from signaling an error with an interlock. Now we have our thermocouple wiring. We have two thermocouples. One to act as a process temperature control. The other to act as a high limit protection. We will first install the high limit thermal couple protection which is factory set with a high limit adjustment of 1200F. Install the process thermocouple both of which offer a third terminal for a shielding wire. Not all thermocouples have shielding wires but this prevents any interference in the thermocouple readings. Now the controller is completely wired and ready to be wired to a heater. This is how you wire the 7550 Series Temperature Process Controller. Thanks for watching.

• Control Panels and Temperature Controllers
• 7550 Control Panel (Legacy)